Rancher HA possible without external DB


I am new to Rancher and setting it up.
I have three rhel nodes in Azure which have the docker engine and ran the command below on all three machines:

docker run -d --restart=unless-stopped -p 8080:8080 -p 9345:9345 rancher/server
–db-host myhost.example.com --db-port 3306 --db-user username --db-pass password --db-name cattle

Is it possible to have Rancher running on 3 nodes without the external DB but with a “internal/ in memory” DB that is synced between the 3 nodes?

With kind regards,


No, the internal DB is pretty much standard mysql and not configured for replication.

Ok, thanks for the info!